jacksonmj/The-Powder-Toy — comment on commit b14cd8c86160d4152068bedb5cefff7352f9cffb
File:  line 0
By jacksonmj:

Well, actually it only happens with PCLN because photons don't pass through PBCN. But I've applied the fix to PBCN as well, just in case that behaviour is ever changed.